Blood is an incompressible fluid. Hope this helps!
<span>from a trough to the rest position and from a crest to the rest position.
</span>
Answer:
Explanation:
If the work done on the cart is NET work
Then the work will result in an increase in kinetic energy
KE₀ + W = KE₁
½mv₀² + W = ½mv₁²
½(0.80)(0.61²) + 0.91 = ½(0.80)v₁²
v₁ = 1.626991...
v₁ = 1.6 m/s
Answer:
F=5449 N
Explanation:
Work done is a product of force and displacement ie
Work done, W, = Force*Displacement
Power, P, is Work done/Time
where P is power, W is work done, F is force, S is displacement and t is time
In this case, F is the frictional force. Converting the power from hp to W, we multiply by 746 hence P=746*168=125328 W
Since displacement/time is velocity, then
P=FV where V is velocity in m/s
Making F the subject
![F=\frac {P}{V}](https://tex.z-dn.net/?f=F%3D%5Cfrac%20%7BP%7D%7BV%7D)
![F=\frac {125328}{23}=5449.043478 N](https://tex.z-dn.net/?f=F%3D%5Cfrac%20%7B125328%7D%7B23%7D%3D5449.043478%20%20N)
F=5449 N
Answer:
Explanation:
Given
mass of water molecule ![m=2.99\times 10^{-26}\ kg](https://tex.z-dn.net/?f=m%3D2.99%5Ctimes%2010%5E%7B-26%7D%5C%20kg)
mass of person ![M=62\ kg](https://tex.z-dn.net/?f=M%3D62%5C%20kg)
It is given that body is mostly made up of water
suppose n water molecules constitutes 62 kg
so ![n\times m=M](https://tex.z-dn.net/?f=n%5Ctimes%20m%3DM)
![n=\frac{62}{2.99\times 10^{-26}}](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B62%7D%7B2.99%5Ctimes%2010%5E%7B-26%7D%7D)
![n=20.73\times 10^{26}\ kg](https://tex.z-dn.net/?f=n%3D20.73%5Ctimes%2010%5E%7B26%7D%5C%20kg)